The Difference Between Ordinary And Extraordinary Is Just That Little Extra

Smercleit, South Uist, Scotland.

The Isle of Barra can be seen on the horizon. That little extra came from outstanding light conditions that gave this normally dark green algae (Cladophora rupestris) a vibrant glow. The Lewisian banded gneiss rocks here are almost 3 billion years old and form the backbone of much of the outer Hebridean chain.